Optical properties of metal nanoparticles as probed by photoemission electron microscopy

Interaction of light with metallic nanostructures exhibit resonances specific to eigenmodes of collective electron motion known as plasmon modes. Both these resonances and effects of electromagnetic singularities lead to local field enhancement. Photoemission electron microscopy (PEEM) was recently...

Full description

Saved in:
Bibliographic Details
Published in:Journal of applied physics 2007-04, Vol.101 (8)
Main Authors: Douillard, L., Charra, F., Fiorini, C., Adam, P. M., Bachelot, R., Kostcheev, S., Lerondel, G., Lamy de la Chapelle, M., Royer, P.
Format: Article
Language:English
Subjects:
Condensed Matter
Materials Science
Physics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Interaction of light with metallic nanostructures exhibit resonances specific to eigenmodes of collective electron motion known as plasmon modes. Both these resonances and effects of electromagnetic singularities lead to local field enhancement. Photoemission electron microscopy (PEEM) was recently used to image the electrons photoemitted from these local effects. Here we report on a full PEEM spectral study of localized surface plasmons excited on nanoparticles. In particular, we show strong spectral similarities between the PEEM signal and optical extinction as a function of the incident wavelength, establishing the photoemission microscopy as a valuable tool for investigating the optical properties of metal nanoparticles.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.2719282